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Gewählte Master / Diploma Thesis:

Carina Andrea Hoisel (2009): Vergleich der Futterqualitäten bei Grassilage, Gärheu und Heu für die Pferdefütterung.
Master / Diploma Thesis - Institut für Pflanzenbau und Pflanzenzüchtung (IPP), BOKU-Universität für Bodenkultur, pp 150. UB BOKU obvsg FullText

Data Source: ZID Abstracts
Abstract:
The series of experiments of the LFZ Raumberg–Gumpenstein on the surfaces of the Lippizan federal stud in Piber are forming the basis of this work.Terms of quality and hygiene parameters of silage, haylage and hay were compared in different variants. Several levels of DM (40, 60, 80 and 86% DM) with different press systems, press densities as well as variants with cutting knifes and different preservation procedures were produced. Samples were taken by the raw material and finished silage, haylage and hay to determine the forage quality by Weender analysis, fermenting quality and sensory evaluation. Crumb losses and leaf-/stem ratio also were raised. Generally the first growth showed a low level of forage quality in all variants while with the second growth could be generated very good qualities. Evaluation of ingredients by Weender analysis showed high fibre content over 30% at the first cut. The first cut showed a lower protein content than the forage of the second cut. Ash and fat values were in standard terms. The energy content were between 9,14 and 9,63 MJ DE/kg DM. This had to be expected in such long standing feed and reflects the prevailing circumstances and problems in practice. At the second cut, fibre content were under 30% and the protein content were accordingly higher. The ash content indicated a strong food pollution and caused a decrease of engery content at values between 9,18 and 9,54 MJ DE/kg DM. There were no significant differences between the different variants detectable. Looking at the first growth, a generally high level of dust loading was detected, while the second growth showed a clearly lower level. The haylage with 60% DM produced with cutting knifes is not qualified for horse feeding because of the very high dust exposure. The sensory evaluation showed the same results. The forage quality of the second growth was excellent while the first growth demonstrated hygienic shortcomings and moderate forage quality. The good results of the second growth showed that with care and specialised knowledge it is possible to produce excellent quality according to the demands of horses. Haylage can clearly compete with hay and silage and represents an alternative forage for horses.

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